Question

if a, b, c, d, dotdotdot x, y, z, stands for district numbers find the value of bracket x minus A bracket x minus b bracket x minus C bracket dot dot x minus y bracket x minus Z bracket

Answer 1

(x-a) (x-b) (x-c) (x-d) ...........(x-x) (x-y) (x-z) = 0

because in this multiplication a bracket (x-x) values to zero

and anything multiplied to zero is zero